底子

1.imprimatura  2.ground(ing)  3.priming  

底的英语翻译：

a copy kept as a record; base; bottom; end; fundus; the truth of a matter
【医】 base; basement; bases; basi-; basio-; basis; batho-; bathy-; fimdi
floor; fundus; pavimentum; solum

子的英语翻译：

【机】 leaven